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oc-ultra1.exe

The application oc-ultra1.exe has been detected as a potentially unwanted program by 4 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The installer uses the OpenCandy monitzation platform which will donwload and install offers in the setup for potentially unwanted software including ad/search-supported toolbars. The file has been seen being downloaded from mirror29.mountspace.com.
MD5:
d7e3860d5c180096b474fe5f03272c6b

SHA-1:
9cc32d19799b6f13685e43c792d79e93e856f51f

SHA-256:
d468c80f5c2476c7c7098256858a93701e8bca91e1b80dd6083d1eb836adf9e0

Scanner detections:
4 / 68

Status:
Potentially unwanted

Explanation:
Packages the OpenCandy software bundler that offers to install additional software and may include web browser add-ons and toolbars which display advertising (based on publisher settings and geo context).

Analysis date:
11/6/2024 3:29:10 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Detection.Undefined
9.0.1.05190

ESET NOD32
Win32/OpenCandy.A potentially unsafe application
8.0.319.0

Reason Heuristics
PUP.OpenCandy.Installer (L)
16.6.16.21

VIPRE Antivirus
Threat.4792085
49574

File size:
372.9 KB (381,870 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\oc-ultra1.exe

File PE Metadata
Compilation timestamp:
4/10/2010 5:49:23 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
6144:a0agvNv6+DvXtg64k6pRNDLVRS6t497tLprLDuYy1cTpCCyMlE:a0aUv/tg0qNDLV2BLty1EMNMlE

Entry address:
0x33E9

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, 70, 85, 40, 00, 89, 6C, 24, 14, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 80, 40, 00, 55, FF, 15, B0, 82, 40, 00, 6A, 08, A3, 78, 06, 47, 00, E8, 67, 27, 00, 00, 55, 68, B4, 02, 00, 00, A3, 90, 05, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 6C, 85, 40, 00, FF, 15, 80, 81, 40, 00, 68, 54, 85, 40, 00, 68, 80, 85, 46, 00, E8, 35, 26, 00, 00, FF, 15, B0, 80, 40, 00, 50, BF, A0, 10, 4C, 00, 57, E8, 23, 26, 00, 00...
 
[+]

Entropy:
7.9375

Packer / compiler:
Nullsoft install system v2.x

Code size:
25 KB (25,600 bytes)

The file oc-ultra1.exe has been seen being distributed by the following URL.

http://mirror29.mountspace.com/getfile.php?p=http://na-us7.disc-tools.com/.../OC-Ultra1.exe

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